If you live uphill from work, then that car just might help to balance the load. Early in the morning, you leave with a minimal charge, and roll down to work on

If you live uphill from work, then that car just might help to balance the load. Early in the morning, you leave with a minimal charge, and roll down to work on regenerative brakes while topping up the batteries. After work, you spend that charge and the minimum fuel necessary to get home. You charge your vehicle in the late afternoon, not long after peak sun. Your home power controller is configured to allocate 80% of the car's battery for household usage, overnight. If you live downhill from work, however, then the only way to use that to your advantage would be to work an evening / night shift.